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J. Shape, trim, and cut ditches and other drainage structures as necessary to achieve <br />grades and dimensions shown on the Construction Drawings. <br />3.5 LIMITS OF EXCAVATION <br />A. Excavate to the depths and widths, as shown on the Construction' Drawings. <br />Allow for minimum thickness of clay liner as required. Excavation carried below <br />the grade lines shown or established by the DESIGN ENGINEER shall be <br />replaced with the same fill material as specified for the overlying fill or backfill, <br />and compacted as required for such overlying fill or backfill. Where the overlying <br />area is not to receive fill or backfill, replace the overexcavated material and <br />compact to a density not less than that of the underlying ground. Cuts below <br />grade shall be corrected by similarly cutting adjoining areas and creating a smooth <br />transition. Correct all overexcavated areas at the EARTHWORK <br />CONTRACTOR's sole expense. <br />3.6 STOCKPILE ACTIVITIES <br />A. Stockpile all excavated material. Uniformly grade stockpile area to conform to <br />existing contours, leave with a neat appearance, and maintain current drainage <br />patterns. The stockpile shall have a slope no greater than two horizontal to one <br />vertical and the top surface shall have a minimum 5 percent grade. <br />B. Selective Stockpiling: <br />1. The CONTRACTOR shall make all reasonable efforts to separately <br />stockpile fine grained materials suitable for use as the Clay Liner, Clay <br />Plug, and Clay Earthfill. Material suitable for use as protective operations <br />layer shall be placed in separate stockpile. <br />2. The QA/QC CONSULTANT may sample and analyze all stockpiles created <br />by the EARTHWORK CONTRACTOR. <br />3. If, in the opinion of the QA/QC CONSULTANT, the EARTHWORK <br />CONTRACTOR is not adequately separating excavated soil in accordance <br />with these Specifications, the QA/QC CONSULTANT may direct the <br />EARTHWORK CONTRACTOR to modify his stockpiling operation or may <br />order the EARTHWORK CONTRACTOR to halt excavation and <br />stockpiling activities. <br />4. Delays caused by inadequate stockpiling operation, as determined by the <br />QA/QC CONSULTANT, shall not be cause for an extension in the <br />EARTHWORK CONTRACTOR's completion dates or cause for <br />EARTHWORK CONTRACTOR change orders and all additional cost <br />associated shall be at the EARTHWORK CONTRACTOR's sole expense. <br />Forward Landfill WMU FU -06 <br />02300 12 EARTHWORK <br />• <br />• <br />• <br />